567 lines
20 KiB
Text
567 lines
20 KiB
Text
# Expect script for ld-visibility tests
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# Copyright (C) 2000-2022 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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# Written by Ian Lance Taylor (ian@cygnus.com)
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# and H.J. Lu (hjl@gnu.org)
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#
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# Make sure that ld can generate ELF shared libraries with visibility.
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# Check to see if the C compiler works
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if { ![check_compiler_available] } {
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return
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}
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# This test can only be run on a couple of ELF platforms or with
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# XCOFF formats.
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# Square bracket expressions seem to confuse istarget.
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if { ![istarget hppa*64*-*-hpux*] \
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&& ![istarget hppa*-*-linux*] \
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&& ![istarget i?86-*-linux*] \
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&& ![istarget i?86-*-gnu*] \
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&& ![istarget *-*-nacl*] \
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&& ![istarget ia64-*-linux*] \
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&& ![istarget m68k-*-linux*] \
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&& ![istarget mips*-*-linux*] \
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&& ![istarget powerpc*-*-linux*] \
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&& ![istarget arm*-*-linux*] \
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&& ![istarget alpha*-*-linux*] \
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&& ![istarget sparc*-*-linux*] \
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&& ![istarget s390*-*-linux*] \
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&& ![istarget sh\[34\]*-*-linux*] \
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&& ![istarget x86_64-*-linux*] \
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&& ![is_xcoff_format] } {
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return
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}
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if [is_xcoff_format] {
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set test_list [lsort [glob -nocomplain $srcdir/$subdir/*-xcoff*.d]]
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} else {
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set test_list [lsort [glob -nocomplain $srcdir/$subdir/*-elf.d]]
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}
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foreach t $test_list {
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# We need to strip the ".d", but can leave the dirname.
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verbose [file rootname $t]
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run_dump_test [file rootname $t]
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}
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set tmpdir tmpdir
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set SHCFLAG ""
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set shared_needs_pic "no"
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set COMPRESS_LDFLAG "-Wl,--compress-debug-sections=zlib-gabi"
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if { [is_xcoff_format] } {
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# Not all the useful features are available with AIX shared
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# libraries by default.
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# We can manage to simulate some of them with export/import
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# files but the overriding of shared library functions or
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# variables by the main program doesn't seem possible.
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# We avoid testing those features.
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set SHCFLAG "-DXCOFF_TEST"
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# In order to avoid listing every symbols in an export file,
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# the export will be done with -bexpall flag.
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# However for imports, we must create the import file.
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set file [open $tmpdir/xcoff-shared.imp w]
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puts $file "#! ."
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puts $file mainvar
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puts $file main_called
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close $file
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# XCOFF doesn't yet support debug sections compresion.
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set COMPRESS_LDFLAG ""
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}
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if [istarget arm*-*-linux*] {
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# On ARM section anchors can change the symbol pre-emptability for
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# non-PIC shared libraries, causing these tests to fail. Turn section
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# anchors off.
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set SHCFLAG "-fno-section-anchors"
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# On targets that have MOVW the compiler will emit relocations which
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# the linker doesn't support when compiling -shared without -fpic. The
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# test to find out whether we want to XFAIL the non-PIC tests requires
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# a compile - so we pre-calculate it here. We also note that this can
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# only affect arm*-*-*eabi* targets as the old ABI doesn't support v7.
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if [istarget arm*-*-*eabi*] {
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set file [open $tmpdir/movw-detect.c w]
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puts $file "void foo(void) { __asm (\"movw r0, #0\"); }"
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close $file
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if [run_host_cmd_yesno "$CC_FOR_TARGET" "$CFLAGS_FOR_TARGET -c $tmpdir/movw-detect.c -o $tmpdir/movw-detect.o"] {
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set shared_needs_pic "yes"
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}
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}
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}
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set support_protected "no"
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if { [istarget *-*-linux*]
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|| [istarget *-*-nacl*]
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|| [istarget *-*-gnu*] } {
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if [ld_compile "$CC_FOR_TARGET -g -DPROTECTED_CHECK" $srcdir/$subdir/main.c $tmpdir/main.o] {
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if [ld_link $CC_FOR_TARGET $tmpdir/main "$tmpdir/main.o"] {
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catch "exec $tmpdir/main" support_protected
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}
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}
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}
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# The test procedure.
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proc visibility_test { visibility progname testname main sh1 sh2 dat args } {
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global CC_FOR_TARGET
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global srcdir
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global subdir
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global exec_output
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global link_output
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global host_triplet
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global tmpdir
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if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" }
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# Build the shared library.
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set shared -shared
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if { [is_xcoff_format] } {
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# On AIX, setup imports and exports.
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append shared " -Wl,-bexpall -Wl,-bI:$tmpdir/xcoff-shared.imp"
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}
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if { [is_elf_format] && [check_shared_lib_support] } {
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append shared " -Wl,-z,notext"
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}
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if {![ld_link $CC_FOR_TARGET $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} {
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if { [ string match $visibility "hidden_undef" ]
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&& [regexp "undefined reference to \`\.?visibility\'" $link_output]
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&& [regexp "undefined reference to \`visibility_var\'" $link_output] } {
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pass "$testname"
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} else { if { [ string match $visibility "protected_undef" ]
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&& [regexp "undefined reference to \`\.?visibility\'" $link_output]
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&& [regexp "undefined reference to \`visibility_var\'" $link_output] } {
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pass "$testname"
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} else {
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fail "$testname"
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}}
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return
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}
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# Link against the shared library. Use -rpath so that the
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# dynamic linker can locate the shared library at runtime.
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# On AIX, we must include /lib in -rpath, as otherwise the loader
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# can not find -lc.
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set rpath $tmpdir
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set exportflag ""
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if { [is_xcoff_format] } {
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set rpath /lib:$tmpdir
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set exportflag " -Wl,-bexpall"
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}
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if ![ld_link $CC_FOR_TARGET $tmpdir/$progname "-Wl,-rpath,$rpath $tmpdir/$main $tmpdir/$progname.so $exportflag"] {
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if { [ string match $visibility "hidden" ]
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&& [regexp "undefined reference to \`\.?visibility\'" $link_output]
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&& [regexp "undefined reference to \`visibility_var\'" $link_output] } {
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pass "$testname"
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} else { if { [ string match $visibility "hidden_undef_def" ]
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&& [regexp "undefined reference to \`\.?visibility\'" $link_output]
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&& [regexp "undefined reference to \`visibility_def\'" $link_output]
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&& [regexp "undefined reference to \`\.?visibility_func\'" $link_output]
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&& [regexp "undefined reference to \`visibility_var\'" $link_output] } {
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pass "$testname"
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} else {
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fail "$testname"
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}}
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return
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}
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if { [ string match $visibility "hidden" ]
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|| [ string match $visibility "hidden_undef" ]
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|| [ string match $visibility "protected_undef" ] } {
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fail "$testname"
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}
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if ![isnative] {
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unsupported "$testname"
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return
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}
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# Run the resulting program
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send_log "$tmpdir/$progname >$tmpdir/$progname.out\n"
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verbose "$tmpdir/$progname >$tmpdir/$progname.out"
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catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output
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if ![string match "" $exec_output] then {
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send_log "$exec_output\n"
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verbose "$exec_output"
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fail "$testname"
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return
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}
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send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n"
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verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat"
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catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output
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set exec_output [prune_warnings $exec_output]
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if {![string match "" $exec_output]} then {
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send_log "$exec_output\n"
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verbose "$exec_output"
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fail "$testname"
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return
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}
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pass "$testname"
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}
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proc visibility_run {visibility} {
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global CC_FOR_TARGET
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global SHCFLAG
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global srcdir
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global subdir
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global tmpdir
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global picflag
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global target_triplet
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global support_protected
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global shared_needs_pic
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global PLT_CFLAGS
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global NOPIE_CFLAGS
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global COMPRESS_LDFLAG
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global NOSANITIZE_CFLAGS
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global NOLTO_CFLAGS
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if [ string match $visibility "hidden" ] {
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set VSBCFLAG "-DHIDDEN_TEST"
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} else { if [ string match $visibility "hidden_normal" ] {
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set VSBCFLAG "-DHIDDEN_NORMAL_TEST"
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} else { if [ string match $visibility "hidden_undef" ] {
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set VSBCFLAG "-DHIDDEN_UNDEF_TEST"
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} else { if [ string match $visibility "hidden_undef_def" ] {
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set VSBCFLAG "-DHIDDEN_UNDEF_TEST -DDSO_DEFINE_TEST"
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} else { if [ string match $visibility "hidden_weak" ] {
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set VSBCFLAG "-DHIDDEN_WEAK_TEST"
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} else { if [ string match $visibility "protected" ] {
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set VSBCFLAG "-DPROTECTED_TEST"
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} else { if [ string match $visibility "protected_undef" ] {
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set VSBCFLAG "-DPROTECTED_UNDEF_TEST"
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} else { if [ string match $visibility "protected_undef_def" ] {
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set VSBCFLAG "-DPROTECTED_UNDEF_TEST -DDSO_DEFINE_TEST"
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} else { if [ string match $visibility "protected_weak" ] {
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set VSBCFLAG "-DPROTECTED_WEAK_TEST"
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} else {
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set VSBCFLAG ""
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}}}}}}}}}
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# Ensure we always start with a clean slate, for the "file exists"
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# tests below.
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remote_file host delete $tmpdir/sh1p.o $tmpdir/sh2p.o $tmpdir/sh1np.o $tmpdir/sh2np.o
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set datfile elfvsb
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if { [is_xcoff_format] } {
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# As explained above, XCOFF shared libraries doesn't support
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# all the ELF features. Thus, the output of the tests are
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# a bit different.
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set datfile xcoffvsb
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}
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if { [istarget powerpc*-*-linux*] \
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|| ( [istarget mips*-*-linux*] && [at_least_gcc_version 4 3] )} {
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# Testing non-PIC libraries is a waste of effort on any target.
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# If you don't pass -fpic or -fPIC to gcc, gcc will assume quite
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# reasonably that you are not compiling for a shared library.
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# It can then make optimisations that result in shared library
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# functions and variables not being overridable. Newer versions
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# of gcc are more likely to do this.
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} else {
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# Compile the main program. Make sure that PLT is used since PLT
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# is expected.
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if ![ld_compile "$CC_FOR_TARGET -g $PLT_CFLAGS $SHCFLAG $VSBCFLAG $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $srcdir/$subdir/main.c $tmpdir/mainnp.o] {
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unsupported "visibility ($visibility) (non PIC)"
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unsupported "visibility ($visibility)"
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} else {
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# The shared library is composed of two files. First compile them
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# without using -fpic. That should work on an ELF system,
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# although it will be less efficient because the dynamic linker
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# will need to do more relocation work. However, note that not
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# using -fpic will cause some of the tests to return different
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# results. Make sure that PLT is used since PLT is expected.
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if { ![ld_compile "$CC_FOR_TARGET -g $NOPIE_CFLAGS $PLT_CFLAGS $SHCFLAG $VSBCFLAG $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o]
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|| ![ld_compile "$CC_FOR_TARGET -g $NOPIE_CFLAGS $PLT_CFLAGS $SHCFLAG $VSBCFLAG $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } {
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unsupported "visibility ($visibility) (non PIC)"
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} else {
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# SunOS non PIC shared libraries don't permit some cases of
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# overriding.
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if { [ string match $visibility "protected" ]
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|| [ string match $visibility "protected_undef_def" ] } {
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if [ string match $support_protected "no" ] {
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setup_xfail $target_triplet
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}
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}
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# Non-pic code uses name binding rules for applications to
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# reference variables by gp-relative relocs, which can't be
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# used with overridable symbols.
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if { ![ string match $visibility "hidden_undef" ]
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&& ![ string match $visibility "protected_undef" ] } {
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setup_xfail "ia64-*-linux*"
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setup_xfail "alpha*-*-linux*"
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}
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if { ![ string match $visibility "hidden" ]
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&& ![ string match $visibility "hidden_undef" ]
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&& ![ string match $visibility "hidden_undef_def" ]
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&& ![ string match $visibility "protected_undef" ] } {
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setup_xfail "s390x-*-linux*"
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if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
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setup_xfail "sparc*-*-linux*"
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}
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}
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if { [is_elf64 $tmpdir/mainnp.o] } {
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setup_xfail "x86_64-*-linux*"
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}
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setup_xfail "x86_64-*-linux-gnux32"
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if { ![istarget hppa*64*-*-linux*] } {
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setup_xfail "hppa*-*-linux*"
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}
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if [ string match $shared_needs_pic "yes" ] {
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setup_xfail "arm*-*-linux*"
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}
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# XCOFF format doesn't know how to handle weak undefined symbols
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# in shared objects.
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if { [ string match $visibility "hidden_weak" ]
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|| [ string match $visibility "protected_weak" ] } {
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setup_xfail "*-*-aix*"
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setup_xfail "*-*-beos*"
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}
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visibility_test $visibility vnp "visibility ($visibility) (non PIC)" mainnp.o sh1np.o sh2np.o $datfile
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# Test ELF shared library relocations with a non-zero load
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# address for the library. Near as I can tell, the R_*_RELATIVE
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# relocations for various targets are broken in the case where
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# the load address is not zero (which is the default).
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if { [ string match $visibility "protected" ]
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|| [ string match $visibility "protected_undef_def" ] } {
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if [ string match $support_protected "no" ] {
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setup_xfail $target_triplet
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}
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}
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if { [ string match $visibility "hidden_normal" ]
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|| [ string match $visibility "hidden_weak" ]
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|| [ string match $visibility "protected" ]
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|| [ string match $visibility "protected_undef_def" ]
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|| [ string match $visibility "protected_weak" ]
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|| [ string match $visibility "normal" ] } {
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setup_xfail "powerpc-*-linux*"
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setup_xfail "s390x-*-linux*"
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if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
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setup_xfail "sparc*-*-linux*"
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}
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}
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if { ![ string match $visibility "hidden_undef" ]
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&& ![ string match $visibility "protected_undef" ] } {
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setup_xfail "ia64-*-linux*"
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setup_xfail "alpha*-*-linux*"
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setup_xfail "mips*-*-linux*"
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}
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if { [is_elf64 $tmpdir/mainnp.o] } {
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setup_xfail "x86_64-*-linux*"
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}
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setup_xfail "x86_64-*-linux-gnux32"
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if { ![istarget hppa*64*-*-linux*] } {
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setup_xfail "hppa*-*-linux*"
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}
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if [ string match $shared_needs_pic "yes" ] {
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setup_xfail "arm*-*-linux*"
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}
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# XCOFF format doesn't know how to handle weak undefined symbols
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# in shared objects.
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if { [ string match $visibility "hidden_weak" ]
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|| [ string match $visibility "protected_weak" ] } {
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setup_xfail "*-*-aix*"
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setup_xfail "*-*-beos*"
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}
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if { ![is_xcoff_format] } {
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visibility_test $visibility vnp "visibility ($visibility) (non PIC, load offset)" \
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mainnp.o sh1np.o sh2np.o $datfile \
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"-Wl,-T,$srcdir/$subdir/elf-offset.ld,--hash-style=sysv"
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}
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}
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# Now compile the code using -fpic.
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if { ![ld_compile "$CC_FOR_TARGET -g $SHCFLAG $VSBCFLAG $NOSANITIZE_CFLAGS $NOLTO_CFLAGS -DSHARED $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
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|| ![ld_compile "$CC_FOR_TARGET -g $SHCFLAG $VSBCFLAG $NOSANITIZE_CFLAGS $NOLTO_CFLAGS -DSHARED $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
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unsupported "visibility ($visibility)"
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} else {
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if { [ string match $visibility "protected" ]
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|| [ string match $visibility "protected_undef_def" ] } {
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if [ string match $support_protected "no" ] {
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setup_xfail $target_triplet
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}
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}
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visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o $datfile $COMPRESS_LDFLAG
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}
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}}
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if { [istarget powerpc*-*-linux*] } {
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# Don't bother.
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} else {
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# Now do the same tests again, but this time compile main.c PIC.
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if ![ld_compile "$CC_FOR_TARGET -g $SHCFLAG $VSBCFLAG $NOSANITIZE_CFLAGS $NOLTO_CFLAGS -DSHARED $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
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unsupported "visibility ($visibility) (PIC main, non PIC so)"
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unsupported "visibility ($visibility) (PIC main)"
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} else {
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if { [ remote_file host exists $tmpdir/sh1np.o ]
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&& [ remote_file host exists $tmpdir/sh2np.o ] } {
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# SunOS non PIC shared libraries don't permit some cases of
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# overriding.
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if { [ string match $visibility "protected" ]
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|| [ string match $visibility "protected_undef_def" ] } {
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if [ string match $support_protected "no" ] {
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setup_xfail $target_triplet
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}
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}
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if { ![ string match $visibility "hidden_undef" ]
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&& ![ string match $visibility "protected_undef" ] } {
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setup_xfail "ia64-*-linux*"
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setup_xfail "alpha*-*-linux*"
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}
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if { ![ string match $visibility "hidden" ]
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|
&& ![ string match $visibility "hidden_undef" ]
|
|
&& ![ string match $visibility "hidden_undef_def" ]
|
|
&& ![ string match $visibility "protected_undef" ] } {
|
|
setup_xfail "s390x-*-linux*"
|
|
if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } {
|
|
setup_xfail "sparc*-*-linux*"
|
|
}
|
|
}
|
|
if { [is_elf64 $tmpdir/mainp.o] } {
|
|
setup_xfail "x86_64-*-linux*"
|
|
}
|
|
setup_xfail "x86_64-*-linux-gnux32"
|
|
if { ![istarget hppa*64*-*-linux*] } {
|
|
setup_xfail "hppa*-*-linux*"
|
|
}
|
|
if [ string match $shared_needs_pic "yes" ] {
|
|
setup_xfail "arm*-*-linux*"
|
|
}
|
|
|
|
# XCOFF format doesn't know how to handle weak undefined symbols
|
|
# in shared objects.
|
|
if { [ string match $visibility "hidden_weak" ]
|
|
|| [ string match $visibility "protected_weak" ] } {
|
|
setup_xfail "*-*-aix*"
|
|
setup_xfail "*-*-beos*"
|
|
}
|
|
|
|
visibility_test $visibility vmpnp "visibility ($visibility) (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o $datfile
|
|
} else {
|
|
unsupported "visibility (PIC main, non PIC so)"
|
|
}
|
|
|
|
if { [ remote_file host exists $tmpdir/sh1p.o ]
|
|
&& [ remote_file host exists $tmpdir/sh2p.o ] } {
|
|
if { [ string match $visibility "protected" ]
|
|
|| [ string match $visibility "protected_undef_def" ] } {
|
|
if [ string match $support_protected "no" ] {
|
|
setup_xfail $target_triplet
|
|
}
|
|
}
|
|
|
|
# XCOFF format doesn't know how to handle weak undefined symbols
|
|
# in shared objects.
|
|
if { [ string match $visibility "hidden_weak" ]
|
|
|| [ string match $visibility "protected_weak" ] } {
|
|
setup_xfail "*-*-aix*"
|
|
setup_xfail "*-*-beos*"
|
|
}
|
|
|
|
visibility_test $visibility vmpp "visibility ($visibility) (PIC main)" mainp.o sh1p.o sh2p.o $datfile
|
|
} else {
|
|
unsupported "visibility ($visibility) (PIC main)"
|
|
}
|
|
}}
|
|
}
|
|
|
|
# Old version of GCC for MIPS default to enabling -fpic
|
|
# and get confused if it is used on the command line.
|
|
if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
|
|
set picflag ""
|
|
} else {
|
|
# Unfortunately, the gcc argument is -fpic and the cc argument is
|
|
# -KPIC. We have to try both.
|
|
set picflag "-fpic"
|
|
send_log "$CC_FOR_TARGET $picflag\n"
|
|
verbose "$CC_FOR_TARGET $picflag"
|
|
catch "exec $CC_FOR_TARGET $picflag" exec_output
|
|
send_log "$exec_output\n"
|
|
verbose "--" "$exec_output"
|
|
if { [string match "*illegal option*" $exec_output] \
|
|
|| [string match "*option ignored*" $exec_output] \
|
|
|| [string match "*unrecognized option*" $exec_output] \
|
|
|| [string match "*passed to ld*" $exec_output] } {
|
|
set picflag "-KPIC"
|
|
}
|
|
}
|
|
verbose "Using $picflag to compile PIC code"
|
|
|
|
visibility_run hidden
|
|
visibility_run hidden_normal
|
|
visibility_run hidden_undef
|
|
visibility_run hidden_undef_def
|
|
visibility_run hidden_weak
|
|
visibility_run protected
|
|
visibility_run protected_undef
|
|
visibility_run protected_undef_def
|
|
visibility_run protected_weak
|
|
visibility_run normal
|
|
|
|
if { ![ld_compile "$CC_FOR_TARGET -g $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $srcdir/$subdir/common.c tmpdir/common.o] } {
|
|
unsupported "common hidden symbol"
|
|
} else {
|
|
if ![ld_link $ld tmpdir/common "tmpdir/common.o"] {
|
|
fail "common hidden symbol"
|
|
} else {
|
|
pass "common hidden symbol"
|
|
}
|
|
}
|
|
|
|
if { ![ld_compile "$CC_FOR_TARGET -g $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $srcdir/$subdir/test.c tmpdir/test.o] } {
|
|
unsupported "weak hidden symbol"
|
|
} else {
|
|
if { ![ld_compile "$CC_FOR_TARGET -g $NOSANITIZE_CFLAGS $NOLTO_CFLAGS -DSHARED $picflag" $srcdir/$subdir/sh3.c tmpdir/sh3.o] } {
|
|
unsupported "weak hidden symbol"
|
|
} else {
|
|
set shared "-shared"
|
|
if { [is_xcoff_format] } {
|
|
# On AIX, setup imports and exports.
|
|
append shared " -bexpall"
|
|
}
|
|
if ![ld_link $ld tmpdir/sh3.so "$shared tmpdir/sh3.o"] {
|
|
fail "weak hidden symbol"
|
|
} else {
|
|
if ![ld_link $ld tmpdir/weak "tmpdir/test.o tmpdir/sh3.so"] {
|
|
fail "weak hidden symbol DSO last"
|
|
} else {
|
|
pass "weak hidden symbol DSO last"
|
|
}
|
|
if ![ld_link $ld tmpdir/weak "tmpdir/sh3.so tmpdir/test.o"] {
|
|
fail "weak hidden symbol DSO first"
|
|
} else {
|
|
pass "weak hidden symbol DSO first"
|
|
}
|
|
}
|
|
}
|
|
}
|